弹体接头对全弹结构动力特性影响研究

Research on Effect of Missiles' Joints on Structural Dynamical Speciality

在对导弹结构的固有动力特性和响应分析中,我们会发现,轴向分布的接头对于全弹的刚度和阻尼特性都带来明显的扰动,对固有频率的影响最大甚至可达25%左右。所以我们必须对导弹弹体接头的动力特性及它对全弹动力特性的影响做深入研究,从而有效地确定全弹动力特性和数学模型,可靠地控制全弹的结构动力响应特性[1]。

In the course of analysis on natural speciality and response of missiles＇ structure, axial po- sition joints produce obvious effects on rigidity and speciality of damp, especially, the maximal effect on natural frequency can reach up to about 25%. And therefore, an in - depth research on dynamical speciality of joint and the whole missile is of great value. Consequently, dynamical specialities of the whole frame and mathematical models are accurately gotten and dynamical response of the whole frame is available acquired.